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Tetraaquabis(isonicotinamide-κN1)nickel(II) bis(4-formylbenzoate) dihydrate

By Tuncer H&amp, Filiz Y&amp, Bar&amp, Ferdi G&amp and Hacali Necefo&amp

Abstract

The asymmetric unit of the title complex, [Ni(C6H6N2O)2(H2O)4](C8H5O3)2·2H2O, contains one-half of the complex cation with the NiII atom located on an inversion center, a 4-formylbenzoate (FB) counter-anion and an uncoordinated water molecule. The four O atoms in the equatorial plane around the Ni atom form a slightly distorted square-planar arrangement and the slightly distorted octahedral coordination is completed by the two N atoms of the isonicotinamide (INA) ligands at a sligthly longer distance in the axial positions. The dihedral angle between the carboxylate group and the attached benzene ring is 8.14 (11)°, while the pyridine and benzene rings are oriented at a dihedral angle of 3.46 (6)°. In the crystal structure, O—H...O, N—H...O and C—H...O hydrogen bonds link the molecules into a three-dimensional network. π–π Contacts between the benzene and pyridine rings [centroid–centroid distance = 3.751 (1) Å] may further stabilize the crystal structure

Topics: Chemistry, QD1-999, Science, Q, DOAJ:Chemistry (General), DOAJ:Chemistry
Publisher: International Union of Crystallography
Year: 2009
DOI identifier: 10.1107/S1600536809032279
OAI identifier: oai:doaj.org/article:14e9b6fdecb34128b5b88d13b54c28db
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